[1]} present a dialog state tracking method for generating a formal query \(F\)  from a user utterance \(Q\)  and dialog history (context) \(\mathcal {H}\) .
Given \((Q, \mathcal {H})\) , the dialog state is extracted from \(\mathcal {H}\)  and stored in a dialog memory. As illustrated in Figure REF  (Right), the dialog memory contains three types of information.
